Underline Collapsible

Component

About

A collapsible section whose trigger reveals its content while an animated underline sweeps, centers, grows, doubles, or dashes in beneath the label, with five visual variants and four sizes.

Built with React and Tailwind. Copy the prompt and paste it into Claude Code, Cursor or Lovable: your agent adds Underline Collapsible to your project and fits it to your theme.

Code

How Underline Collapsible is used: the demo's code. The component's own source comes with a free account.

Usage.tsx

import {
  SweepCollapsible,
  CenterCollapsible,
  GrowCollapsible,
  DoubleCollapsible,
  DashedCollapsible,
} from "@/components/ui/collapsible-underline";

export default function CollapsibleUnderlineDemo() {
  return (
    <div className="mx-auto flex w-full max-w-md flex-col divide-y divide-border/50 px-4">
      <SweepCollapsible defaultOpen title="Sweep" />
      <CenterCollapsible title="Center" />
      <GrowCollapsible title="Grow" />
      <DoubleCollapsible title="Double" />
      <DashedCollapsible title="Dashed" />
    </div>
  );
}